High voltage rectifier tube mounting



Sept. 6, 1955 w. H. SUMMERER 2,717,366

HIGH VOLTAGE RECTIFIER TUBE] MOUNTING Filed Sept. 15, 1952 ff 1; A

30 INVENTOR.

W z/mm Z. (9247227726262 'ilnited States Patent @hice 2,717,366 Patented Sept. 6, 1955 HIGH VOLTAGE RECTIFIER TUBE MOUNTING William H. Summerer, Chicago, Ill., assignor to Admiral Corporation, Chicago, Ill., a corporation of Deiaware Application September 13, 1952, Serial No. 309,530

6 Claims. (Cl. 339-126) This invention relates to an apparatus for mounting a vacuum tube, and in particular to a mounting for a high voltage rectifier tube such as is used in the high voltage power supply of a television receiver or the like.

Although mountings'for vacuum tubes arewell known to the art, the present invention represents an improvement over known mountings since it affords economy in space about the tube in addition to. a decrease in the cost of manufacture and also permits a mounting for a tube carrying a high voltage which eliminates shock hazards. The mounting is such that it is time saving in installation, requiring no special tools for such installation. it eliminates the use of rivets and reduces the sharp points which causes the generation of high voltage corona and also provides a simple way of including a corona ring in the combination.

For a further and better understanding of the invention besides one manner in which it may be carried out, reference may be had to the accompanying drawings in which:

Fig. l is a sectional view of the improved tube mounting showing the same attached to a chassis and showing the tube and socket in elevation.

Fig. 2 is a view of the apparatus shown in Fig. l, at right angle thereto, partly in elevation, and with the vacuum tube removed;

Fig. 3 is a fragmentary bottom plan view of the tube socket in the process of assembly with its mounting;

Fig. 4 is a view corresponding to Fig. 3 showing the socket in a more advanced state of assembly with the mounting;

Fig. 5 is a perspective view of the corona shield;

Fig. 6 is a perspective view of the tube socket; and

Fig. 7 is a bottom plan view of the tube mounting as finally assembled.

Referring to the drawings, throughout which like parts are designated by like reference characters.

In Fig. 1 a vacuum tube 2 of the class used for rectifying a high voltage current is plugged into a socket 4 which has apertures 3 for securing the tube connection pin not shown. The socket has the usual terminal lugs 6 which may be connected into a circuit in theusual manner.

The socket 4 is secured in carrier. member 7 which in turn is supported by the chassis 8 which supports the components of a television receiver. The carrier 7 is constructed of a suitable insulating material such as Bakelite and is preferably produced by a moulding process. It is provided with a barrel or-tubular portion 9 having arms 11 extending from oppositesides thereof. The barrel 9 is received and extends through an aperture 12 in the chassis 8 and is retained therein by screws13, passing freely through apertures 14, in the arms 11 and threaded in said chassis.

The socket 4 is supported in the carrier in offset relation to the chassis 8, by means of a .web or partition extending transversely of and intermediate the ends of the barrel 9. The web has an aperture 16 in its axis which receives the socket. The socket bears a series of ribs or 2 flanges 17 disposed in alignmentaround its periphery, which rest against the top surface of the web and limit the extent to which the socket may extend through the aperture 16. The socket 4 also bears a pair. of. lugs 18, preferably disposed diametrically opposite to each other, in a plane spaced from the ribs. 17. In order that the lugs 18 may pass through the web 10, it is formed with notches 19, Figs. 3 and 4, at the edge of the aperture 16. The notches 19 not only provide clearance for the lugs but provide access to cam surfaces 21 which extends for approximately degrees about the aperture 16 from both of said notches so that in the operation when the socket is inserted in the aperture until the lugs are slightly below the end portions of the earns 21 at the notches andv is rotated, the lugs engage with thecams'and cause the socket to be pulled tightly against theweb. The ends of the cam surfaces may level off at 21 where they meet the shoulder 21" at the extremity of the cam. See Fig. 3.

Means is provided to lock the socket in place in the carrier. This is effected by a metallic corona shield 22 which is of inverted cup-shape in general contour, it including a skirt portion 23, of annular formation, at one end of which is a base portion 24. The base 24 is apertured at 26 so that it may slide over the lower end of the socket, it being provided with notches 27 at the edge of the aperture 26 which enable it to clear the lugs 18. The base of the skirt may thus be in abutment with the web 10 and is retained in this fixed relationship to the web by a pair of tangs 28 which are struck upward from the base 24 at the edge of the aperture 26 and are spaced from each other so as to extend through the notches 19 in the Web. Once in position, the tangs are bent laterally as indicated in Fig. 1 over the web 11 to retain the shield 22 in place in the carrier member 7. As thus installed, the tangs 28 extend through the notches formed between adjacent pairs of flanges 17. Angular displacement of the socket 4 is prevented by a pair of ears 29 extending downward from the base 24. ()nce the shield 22 is assembled with the carrier 7, which is possible only. after the lugs 18 have been moved angularly a predetermined distance'from the notches 19, the cars 29 abut the lugs 18 to resist turning movement of the socket, as can best be seen in Fig. 7.

The shield is provided with 2. lug 46) which may be used as a convenient means of connecting the shield to an appropriate lead on the socket or as .a ground.

If desired, the lower side of web 1&3 may be formed with one or more annular ridges 3Q thereon between the corona ring 23 and the barrel 9 to increase the leakage path and make it more difficult for the loss of high voltage current to travel across the carrier.

As can be seen, the assembly of the device is extremely simple. With the carrier mounted on the chassis, the tube socket is inserted from above, the lugsld passing through the notches 1' after which it is turned. The lugs 18 ride upon the cam surfaces 21, pulling the socket firmly into contact with the carrier and at the end of the rotation come to rest on the flat spot 21' in engagement with the shoulder 21". At this time, the spaces between the ribs 17 line up with the notches 19, and the shield is placed over the bottom end of the socket with the tangs extending through the notches afterwhich they are bent over to hold the shield. in place. At this time, the cars 29 are abutting the lugs 18 and theentire socket is held against movement.

Although the invention has been described in one embodiment thereof, 1 am aware that numerous and extensive departures may be made therefrom without departing from the spirit or scope of the invention.

I claim:

1. A high voltage tube mounting comprising an insulating member for connection to the chassis and having a tube socket receiving opening therein, a tube socket disposed in said opening and a high voltage shield connected to said member extending around and enclosing the tube socket and means on said shield engaging the tube socket to lock it in place.

2. An apparatus of the class described comprising a member formed of insulating material and having a hollow cylindrical portion for extension through an opening in a radio chassis with flanges for connecting to the chassis and having a partition extending through the mid portion, below the level of the chassis, said partition being formed with an opening having a bayonet lock and a tube socket for interlocking engagement therewith, shield means surrounding said tube socket on one side of said partition and formed with lugs extending through said opening for interlocking engagement therewith and carrying lugs for engagement with the tube socket to hold it locked in the opening.

3. A mounting for a vacuum tube socket having a shoulder at its periphery and at least one follower also at its periphery spaced from the shoulder and terminal lugs on its end, comprising a dielectric carrier formed with an aperture therein for reception of the socket and being notched at the edge of the aperture for clearance of the follower when the socket is passed into the aperture until the shoulder engages the carrier, cam means on the carrier, the cam means extending from the notches and arranged to draw the shoulder against said carrier by cooperation with the follower when the socket is rotated about its axis and said follower is carried away from the notched region, shielding means comprising an abutment member formed with a second aperture therein for accommodation of the socket and having a second notch at the edges of said second aperture for clearance of the follower when the shield is slipped over the lug end of the socket and the abutment member brought into engagement with the carrier, a conductive corona shield at the outer edge of the abutment in spaced relation to and surrounding the lugs when said abutment is in engagement with the carrier, anchor members on the abutment extending through the first notches and being formed to have anchored engagement with the carrier to secure the shield thereto and concurrently to resist displacement of the followers from their positioned relationship to the cams by engagement of the second notches with the followers.

4. A mounting for a vacuum tube socket having a flange at its periphery in one plane and a pair of follov ers also at its periphery in another plane spaced from said one plane in addition to terminal lugs on its base, comprising a dielectric carrier formed with a first aperture therein for reception of the socket and having first notches at the edge of the aperture to receive the followers and thereby enable the socket to be passed into the aperture until the flanges engage the carrier, a pair of cams on the carrier, each of the cams leading from one of the notches and drawing the flanges against said carrier by cooperation with the followers when the socket is rotated about its axis and said followers are carried away from the notches, shielding means comprising a conductive abutment member formed with a second aperture therein for accommodation of the socket and having second notches at the edges of said second aperture for accommodation of the followers when the shield is slipped over the lug end of the socket and the abutment member brought into engagement with the carrier, a corona shield at the outer edge of the abutment in spaced relation to and surrounding the lugs when said abutment is in engagement with the carrier, a pair of fingers on the abutment extending through the first notches and bent over the surface of the opposite side of the carrier to secure the shield thereto and concurrently to resist displacement of the followers with respect to the cams by the confining engagement of the second notches on said followers.

5. A mounting for a high voltage vacuum tube socket having a flange at its periphery in one plane and a pair of followers also at its periphery spaced from the flange in another plane, comprising supporting means including a dielectric carrier, and coupling means in offset relation to the carrier for support of the socket in a plane spaced from the plane of a chassis plate, the carrier being formed with a first aperture therein for reception of the socket and having first notches at the edge of the aperture to receive the followers and thereby enable the socket to be passed into the aperture until the flanges engage the carrier, 21 pair of cams on the carrier, each of the cams leading from one of the notches and drawing the flanges against said carrier by cooperation with the followers when the socket is rotated about its axis and said followers are carried away from the notches, shielding means comprising an abutment member formed with a second aperture therein for accommodation of the socket and having second notches at the edges of said second aperture for accommodation of the followers when the shield is slipped over the lug end of the socket, a conductive corona shield at the outer edge of the abutment in spaced relation to and surrounding the lugs when said abutment is in engagement with the carrier, a pair of anchor members on the abutment extending through the first notches and formed to have anchored engagement with the carrier to secure the shield thereto and concurrently to resist displacement of the followers with respect to the cams by the confining influence of the second notches on said followers.

6. The combination with an apertured chassis plate and a high voltage rectifier tube socket having a shoulder thereon and oppositely-disposed lugs thereon spaced longitudinally of the socket from the shoulder and a series of terminals at the end of the socket, of means by which the socket is supported from the chassis plate in a plane other than the plane of the plate comprising an annular dielectric member the interior of which is substantially greater than the diameter of the socket, arms on the annular member formed for connection with the chassis plate, a carrier web intermediate the ends of the annular member, the web being formed with a first aperture therein for reception of the socket and having first notches in said web at the edge of the aperture, a cam spiraling from each of the notches and being clampingly engaged by the lugs when they are carried through the notches by insertion of the socket through the aperture and thence carried into cooperation with the cams by rotary motion of the socket in said aperture to draw the shoulder thereof into clamped engagement with the web, means to concurrently shield the terminals against corona losses therefrom and resist unclamping of the lugs from the cams including an annular shield, anchor members extending from the shield in the slots and being formed to secure said shield to said web, radial extensions at the end of the shield adjacent the web, said extensions extending inwardly beside the lugs for engagement therewith and thereby to resist their displacement over the cams toward the notches, and annular ridges on the web around the aperture to provide an elongated path for electrical losses over said web from the terminals.

References Cited in the file of this patent UNITED STATES PATENTS r 2,062,256 Del Camp Nov. 24, 1936 2,195,180 Marzetti Mar. 26, 1940 2,291,808 Henning Aug. 4, 1942 2,450,873 Antony Oct. 12, 1948 2,468,737 Davis May 3, 1949 

